Wu J, Värnik A, Tooding L-M, Värnik P, Kasearu K. Suicide among older people in relation to their subjective and objective well-being in different European regions. European Journal of Ageing 2014;11(2):131-140

Kõlves K, Milner A, Värnik P. Suicide rates and socioeconomic factors in Eastern European countries after the collapse of the Soviet Union: trends between 1990 and 2008. Sociology of Health and Illness 2013;35(6):956-970

Schneider B, Kõlves K, Blettner M, Wetterling T, Schnabel A, Värnik A. Substance use disorders as risk factors for suicide in an Eastern and a Central European city (Tallinn and Frankfurt/Main). Psychiatry Research 2009;165(3):263-72

Värnik A, Kõlves K, Sisask M, Samm A, Wasserman D. Suicide mortality and political transition: Russians in Estonia compared to the Estonians in Estonia and the population of Russia. Trames 2006;10(3):268-77